SourceFire ClamAV up to 0.96.x vba_extract.c vba_read_project_strings resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in SourceFire ClamAV up to 0.96.x. Affected by this issue is the function vba_read_project_strings of the file vba_extract.c. Executing a manipulation can lead to resource management. This vulnerability is handled as CVE-2011-1003. The attack can be executed remotely. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in SourceFire ClamAV up to 0.96.x (Anti-Malware Software) and classified as critical. This vulnerability affects the function vba_read_project_strings of the file vba_extract.c. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Double free vulnerability in the vba_read_project_strings function in vba_extract.c in libclamav in ClamAV before 0.97 might allow remote attackers to execute arbitrary code via crafted Visual Basic for Applications (VBA) data in a Microsoft Office document. NOTE: some of these details are obtained from third party information.

The weakness was released 02/21/2011 as confirmed git commit (GIT Repository). The advisory is shared for download at git.clamav.net. This vulnerability was named CVE-2011-1003. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 75450 (openSUSE Security Update : clamav (openSUSE-SU-2011:0208-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119156 (ClamAV "vba_read_project_strings()" Double Free Memory Corruption Vulnerability).

Upgrading to version 0.97.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.clamav.net. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (65544), Tenable (75450), SecurityFocus (BID 46470†), OSVDB (70937†) and SecurityTracker (ID 1025100†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Anti-Malware Software

Vendor

• SourceFire

Name

• ClamAV

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.37
• 0.38
• 0.39
• 0.40
• 0.41
• 0.42
• 0.43
• 0.44
• 0.45
• 0.46
• 0.47
• 0.48
• 0.49
• 0.50
• 0.51
• 0.52
• 0.53
• 0.54
• 0.55
• 0.56
• 0.57
• 0.58
• 0.59
• 0.60
• 0.61
• 0.62
• 0.63
• 0.64
• 0.65
• 0.66
• 0.67
• 0.68
• 0.69
• 0.70
• 0.71
• 0.72
• 0.73
• 0.74
• 0.75
• 0.76
• 0.77
• 0.78
• 0.79
• 0.80
• 0.81
• 0.82
• 0.83
• 0.84
• 0.85
• 0.86
• 0.87
• 0.88
• 0.89
• 0.90
• 0.91
• 0.92
• 0.93
• 0.94
• 0.95
• 0.96

License

• free

Website

• Vendor: https://www.cisco.com/c/en/us/services/acquisitions/sourcefire.html

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 75450
Nessus Name: openSUSE Security Update : clamav (openSUSE-SU-2011:0208-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 103083
OpenVAS Name: ClamAV vba_read_project_strings() Double Free Memory Corruption Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ClamAV 0.97.0
Patch: d21fb8d975f8c9688894a8cef4d50d977022e09f

Timelineinfo

01/01/2011 🔍
02/14/2011 +43 days 🔍
02/15/2011 +1 days 🔍
02/21/2011 +6 days 🔍
02/21/2011 +0 days 🔍
02/21/2011 +0 days 🔍
02/23/2011 +1 days 🔍
03/02/2011 +7 days 🔍
06/13/2014 +1198 days 🔍
03/20/2015 +280 days 🔍
01/16/2025 +3590 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: USN-1076-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1003 (🔍)
GCVE (CVE): GCVE-0-2011-1003
GCVE (VulDB): GCVE-100-56596

OVAL: 🔍

X-Force: 65544
SecurityFocus: 46470 - ClamAV 'vba_read_project_strings()' Double Free Memory Corruption Vulnerability
Secunia: 43392
OSVDB: 70937 - ClamAV vba_extract.c vba_read_project_strings() Function Double-free Arbitrary Code Execution
SecurityTracker: 1025100
Vulnerability Center: 29773 - ClamAV Prior to 0.97 vba_read_project_strings Double Free Vulnerability, Medium

Entryinfo

Created: 03/20/2015 16:16
Updated: 01/16/2025 22:10
Changes: 03/20/2015 16:16 (68), 05/10/2019 18:32 (9), 10/17/2021 19:09 (7), 10/17/2021 19:18 (1), 12/01/2024 22:48 (15), 01/16/2025 22:10 (2)
Complete: 🔍
Cache ID: 216:4C2:103

Once again VulDB remains the best source for vulnerability data.

Discussion

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